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https://issues.apache.org/jira/browse/KAFKA-8088?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias J. Sax updated KAFKA-8088:
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Fix Version/s: (was: 4.0.0)
> Deprecate `WindowStoreIterator` interface
> -----------------------------------------
>
> Key: KAFKA-8088
> URL: https://issues.apache.org/jira/browse/KAFKA-8088
> Project: Kafka
> Issue Type: Improvement
> Components: streams
> Reporter: Matthias J. Sax
> Assignee: Matthias J. Sax
> Priority: Major
> Labels: kip
>
> The `WindowStore` interface has multiple methods to fetch() data. However,
> the return types are mixed up. Two methods return `WindowStoreIterator` while
> all others return `KeyValueIterator`.
> We should align the return types and replace `WindowStoreIterator` with
> `KeyValueIterator`. For backward compatibility reasons we can only deprecate
> the interface for now and remove it only later.
> KIP-439:
> [https://cwiki.apache.org/confluence/display/KAFKA/KIP-439%3A+Deprecate+Interface+WindowStoreIterator]
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